Josef kristen



(No Model.)

. J. KRISTEN. APPARATU$ FOR DYEING HIDES.

No. 442,628. Patented Dec. 16, 1890.

ms Nomus vz'nzns cc, PHOTO-LITHQ, WASHINGTON, n. 04

NIT-ED STATES A'rimr FEIC'Et .IOSEF KRISTEN, OF BRUNN, AUSTRIA-HUNGARY.

APPARATUS FOR DYElNG HIDES.

SPECIFICATION forming part of Letters Patent No. 442,628, dated December16, 1890.

Application filed August 6, 1890.

T0 ztZZ whom, it may concern:

Be it known that I,JOSEF KRISTEN, leatherdyer, a subject of the Emperorof Austria- Hungary, residing at Briinn, in the Province of Moravia, inthe Empire of Austria-Hungary, have invented certain new and usefulImprovements in Apparatus for Dyeing Hides; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to letters of reference marked thereon, which form a part of thisspecification.

Referring to the drawings, Figure 1 is a vertical sectional elevation ofan apparatus for dyeing hides, embodying my improvements. Fig. 2 is atop plan View thereof.

This invention relates to that class of machines for dyeing hides inwhich the hide is stretched upon a table adapted to revolve in ahorizontal plane, the dye-liquor being distributed over the hide bycentrifugal action, and is an improvement on my invention described inLetters Patent of the United States granted to me under date of May 13,1890, No. 427,697.

The invention has for its object certain improvements 011 the machinedescribed in my Letters Patent referred to, which improvements relatechiefly to the construction of the revolving table, to the means forsupplying the dye-liquor, and to means for filtering the excess ofdye-liquor before returning the same to the supply-reservoir.

To these ends the invention consistsin the construction of the revolvingtable that supports the hide, and in the combination therewith of meansfor supplying the dye-liquor over a radial line.

The invention further consists in the combination, with thesupply-reservoir, the reservoir for the collection of the excess ofdyeliquor, and the pump, of a filter interposed between the pump and thecollecting-vessel, as will now be fully described, reference being hadto the accompanying drawings,in which- A indicates the revoluble tableor support for the hide or skin, which consists of a disk d of a hardmaterial, having a highly-polished surface or surfaces and that isimper- Serial No, 361,182. (No model.)

meable to moisture-ms, for instance, a disk of glass, or porcelain, orof some other material of an impervious nature, and capable of receivinga high polish, or of amater1alhaving an enamel-like surface.

In my Letters Patent hereinabove referred to I have described arevolublesupport or table of wood. I have, however, found that such asupport has many disadvantages, in that it becomes rapidly saturatedwith the dyeliquor, hence unfitted for use when dye solutions ofdifferent colors are used, unless the support is first thoroughly driedand the dye neutralized. On the other hand, the hide or skin to be drieddoes not as firmly adhere to a surface of Wood as it will to a hard andhighly-polished surface that is impervious to moisture, the hide beingliable to wrinkle, and the operation of dyeing cannot be carried out asuniformly as this can be done with a support of the nature of that whichforms a part of this invention, and upon which the hide may be laid andto which it may be caused to firmly adhere or eohere, thus permittingthe smoothing out of all wrinkles.

In practice and with a view to more conveniently revolve the glass tablea I secure the same to a backing of wood d to the edges or periphery ofwhich is secured a hoop a, so as to form an encompassing flange for thereception of the glass or porcelain table or disk a which is cemented toits backing and to the hoop by means of any well-known and suitablewater-proof cement. The wood backing a is provided with a socket-bearingfor the upper end of the driving-spindle a, to which the table isrigidly secured.

The table is adapted to revolve in a receptacle C, that has a conicalbottom for the purpose of collecting the d ye-liquor thrown off the hideby centrifugal action, said receptacle being supported from any suitableframework, and is provided with an axial upwardly-extending tubular hubor sleeve, through which the spindle a passes, thus preventing thedye-liquor from escaping along the spindle. The vessel C is connected bya pipe 0 with a filter E, that has a removable filtering mediumas, forinstance, a false bottom e of some foraminous material, as wire-gauze orlike material, and provided with a handle 6 for the purpose of removingthe filtering medium whenever this becomes necessary for cleansing thesame.

The filter E has a conical bottom connected by pipe 6 with thesuction-port ofapump D,

the forcing or exhaust port of which is connected by pipe (Z with thesupply or feed reservoir B.

To the reservoir B is secured a pipe Z), that extends across the tableA, the outer end of said pipe I) being closed. The pipe I) is perforatedfor the greater part of its length, so as to supply the dye-liquor tothe hide on a line radiating from the center to near the periphery ofthe table A, the outer perforations being in or about in the verticalaxial plane of said table.

By means of the described arrangement of supply or feed pipe I) thedye-liquor is spread over a greater area of the hide, and the operationof dyeing proceeds much more rapidly than is the case When thedye-liquor is caused to flow upon the hide at asingle point and to bespread or distributed over the hide by centrifugal action only, as isthe case in the machine described in my Letters Patent hereinabovereferred to. On the other hand, by filtering the dye-liquor beforereturning the same to the feed-reservoir B all danger of choking thepump or the'feed-pipe or its perforations is avoided, as I have found inpractice that particles of skin and other foreign matter adhering to thehides are washed off during the operation of dyeing, and are carriedwith the dye-liquor to the pump, which is liable to become choked, orsuch foreign matter is carried back into the supply-reservoir, andthence to the feed or supply pipe Z), frequently choking the same andcausing a stoppage until the obstruction was removed.

The table A is revolved by means of any suitable mechanism-as, forinstance, by frictiongearthe pump being operated by an ecthereof,substantially as and for the purpose set forth.

2. In a machine for dyeing hides, the combination, with a table for thesupport of the hide or skin, adapted to revolve in a horizontal plane, asupply-pipe arranged to supply the dye-liquor to the table, a reservoirto which said pipe is connected, a receptacle or vessel encompassing thetable for collecting the excess of dye-liquor, and a pump for returningthe dye-liquor to the reservoir, of a filter interposed in theconnection between the pump and the collecting-vessel, substantially asand for the purposes set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JOSEF KRISTEN.

Witnesses:

NETTIE HARRIS, W. B. MURPHY.

